A closed-system motor can lower your bicycle insurance premium because it makes it harder to modify the bike and reduces the risk of theft. Insurers often reward bicycles that comply with legal e-bike requirements (250 watts, pedal assistance up to 25 km/h) and have an immobilizer with more favorable terms and sometimes a lower premium.
Does this sound familiar? You’ve made a significant investment in an electric bike or cargo bike, only to find that insuring it is more expensive or more complicated than you expected. The technology in your bike plays a bigger role in this than many people realize.
In this article, you'll learn how a closed system affects your premium, what insurers specifically look for, and how you can use that knowledge to your advantage.
What is a closed-loop motor system on an e-bike?
A closed motor system is a drive system whose software and settings are not freely accessible to users or third parties. The motor provides pedal assistance up to 25 km/h and delivers a maximum of 250 watts of continuous power, which falls exactly within the Dutch e-bike requirements.
In a closed system, the speed and power controls are “locked.” This means you can’t simply make the bike go faster or deliver more power using a dongle or app setting. This differs from an open system, where those limits are easier to bypass.
STOER Bikes has made a conscious decision to use a drivetrain that complies with these legal requirements. If you'd like to know exactly what this means from a technical standpoint, please read What a closed e-bike system means and why “scalable” means something completely different.
Why can a closed system lower your insurance premium?
A closed system lowers your premium because it reduces two risks at once: the likelihood of a tampered, illegal bicycle and the likelihood of theft. Insurers calculate premiums based on risk, and less risk means more favorable terms.
A bicycle that has not been modified remains, legally speaking, a regular e-bike. As soon as a bike exceeds 25 km/h on the motor or accelerates faster than permitted, it may be classified as a moped or even a light moped. In that case, different rules apply regarding registration and insurance, and your standard bicycle insurance coverage often becomes invalid.
“We’ve noticed that customers with bikes that can’t be modified have fewer hassles when taking out insurance,” says a product specialist at STOER Bikes. “Insurers ask fewer questions if the technical specifications simply meet the standard.”
How do insurers assess the risk associated with an e-bike?
When it comes to e-bikes, insurers consider three factors: the replacement value, the risk of theft, and the bike’s legal status. An expensive bike in a major city without proper security measures poses a higher risk than a well-secured bike that fully meets the e-bike requirements.
A closed system scores well on this last point. The bike cannot be secretly modified, so the insurer can be certain that you are riding within the rules. That makes risk assessment simpler and more predictable.
Built-in security is important. For example, a immobilizer with PIN code and GPS tracking. These features reduce the likelihood of a successful theft and, therefore, the amount the insurer may have to pay out.
Closed-system vs. open-system: What’s the difference for your insurance?
The table below lists the key differences, so you can see at a glance why a closed system is more advantageous from an insurance perspective.
| Feature | Closed system | Open system |
|---|---|---|
| Should we increase it? | Difficult, but still within the norm | Often easy to customize |
| Legal Status | Still an e-bike (250W, 25 km/h) | Risk of Being Classified as a Moped After Tuning |
| Theft protection | Frequent immobilizer activation and tracking | Varies; not always available |
| Effect on premiums | Could be lower and more insurable | May be more expensive or harder to insure |
| Coverage in the Event of Damage | Remains valid within the standard | May be waived upon appeal |
In short: a closed system gives you greater assurance that your coverage will remain in place, especially when you need it most.
What role does performance play in your coverage?
Modifying your e-bike can void your insurance coverage. If you ride a modified e-bike and cause damage, the insurer may refuse to pay out because the bike no longer meets the requirements for a standard e-bike.
This affects not only you, but also any potential victims. If a modified bicycle is classified as a moped, you are required to have liability insurance. Without that coverage, you are personally liable for any damages.
With a closed system, you hardly run this risk, because the bike remains within the standard. If you want to know how to recognize a safe system that’s difficult to tamper with, read the article about a A fat bike that can't be tuned up. According to the Central government (2024) An e-bike remains simply a bicycle as long as the motor provides assistance up to 25 km/h and delivers a maximum of 250 watts.
Here's how to keep your premium low with a secure system
Do you want to get the best possible insurance coverage? These steps will help you minimize your risk and keep your premiums under control.
- Choose a bike with a closed system. This way, your bike will meet the e-bike requirements and you'll maintain your coverage.
- Use an approved lock. Many insurers require an ART-certified lock; find out which ones Do locks really prevent theft?.
- Turn on the immobilizer and tracking. These features significantly reduce the risk of theft.
- Never overfeed your bike. Any change in your income may cause your coverage to lapse.
- Read your policy terms and conditions carefully. Check which security measures are required and whether accessories are covered under the policy.
The STOER models, such as the CargoX and the UrbanX were developed in the Netherlands and are CE-certified, with technology that is deliberately designed to comply with legal e-bike requirements. This makes them not only safe in traffic, but also easier to insure. According to the certification institute ART Foundation (2025) A certified lock, when used in combination with electronic security measures, demonstrably increases resistance to theft.
With the STOER bicycle insurance You’ll benefit from replacement-value coverage and no deductible in the event of theft—tailored specifically to a premium bike with a locked system. That way, you can be sure your technology and your coverage are a perfect match.
Frequently Asked Questions About Closed Systems and Bicycle Insurance
How much does bike insurance cost for a closed-system e-bike?
The premium depends on the replacement value, your place of residence, and the coverage you choose. A bicycle with a locked system and good security features often falls into a lower risk class. Always request a customized quote from your insurer so you can tailor the premium to your specific situation.
Will a closed system definitely lower my premium?
There is no guarantee, because each insurer sets its own rates. However, a closed system is considered a positive risk factor, along with an ART lock and an immobilizer. This combination makes your bike easier to insure and may result in a lower premium or more favorable terms.
What happens to my coverage if I register my bike?
If you modify your bicycle, it may be legally classified as a moped, and your standard bicycle insurance coverage will often become invalid. In the event of damage or theft, you then run the risk that the insurer will not pay out. A closed system prevents this by ensuring the bicycle remains within the e-bike standards.
Why is a closed system safer in traffic?
A closed-loop system keeps speed and power within legal limits, ensuring that your bike remains predictable and controllable. This reduces the risk of accidents caused by excessive speeds. Insurers view this as a lower risk, which has a positive impact on your premium and coverage.
Does an STOER bike come standard with an immobilizer?
STOER models are equipped with security features such as an immobilizer with a PIN code and GPS tracking. These features reduce the risk of theft and help you meet the requirements of many insurance companies. Check which security features are included with your model and always activate them.
Want to make sure your bike and insurance are a perfect match? Check out the STOER bicycle insurance with replacement cost coverage, or schedule a test drive to experience the closed-system technology firsthand.
